The perimeter of the rectangle is 48 cm, one side is 14 cm. What is the other side?

The perimeter of a rectangle whose opposite sides are equal corresponds to the formula:
P = 2a + 2b. Provided that this value for such a figure is 48 cm, length = 14 cm, we express the width by composing the equation:
2 * 14 + 2b = 48.
Variables are always shown on the left and known values on the right. When transferring, the sign in front of them changes to the opposite.
2b = 48 – 28 = 20.
The second factor is the quotient of the first.
b = 20: 2 = 10 cm.

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